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https://git.suyu.dev/suyu/suyu
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114 lines
2.9 KiB
C++
114 lines
2.9 KiB
C++
// Copyright 2018 yuzu emulator team
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#pragma once
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#include <array>
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#include <memory>
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#include <vector>
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#include "common/common_funcs.h"
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#include "common/common_types.h"
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#include "common/swap.h"
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#include "core/file_sys/vfs.h"
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namespace FileSys {
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class CNMT;
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struct CNMTHeader;
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struct OptionalHeader;
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enum class TitleType : u8 {
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SystemProgram = 0x01,
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SystemDataArchive = 0x02,
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SystemUpdate = 0x03,
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FirmwarePackageA = 0x04,
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FirmwarePackageB = 0x05,
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Application = 0x80,
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Update = 0x81,
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AOC = 0x82,
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DeltaTitle = 0x83,
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};
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enum class ContentRecordType : u8 {
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Meta = 0,
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Program = 1,
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Data = 2,
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Control = 3,
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HtmlDocument = 4,
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LegalInformation = 5,
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DeltaFragment = 6,
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};
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struct ContentRecord {
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std::array<u8, 0x20> hash;
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std::array<u8, 0x10> nca_id;
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std::array<u8, 0x6> size;
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ContentRecordType type;
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INSERT_PADDING_BYTES(1);
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};
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static_assert(sizeof(ContentRecord) == 0x38, "ContentRecord has incorrect size.");
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constexpr ContentRecord EMPTY_META_CONTENT_RECORD{{}, {}, {}, ContentRecordType::Meta, {}};
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struct MetaRecord {
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u64_le title_id;
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u32_le title_version;
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TitleType type;
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u8 install_byte;
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INSERT_PADDING_BYTES(2);
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};
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static_assert(sizeof(MetaRecord) == 0x10, "MetaRecord has incorrect size.");
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struct OptionalHeader {
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u64_le title_id;
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u64_le minimum_version;
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};
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static_assert(sizeof(OptionalHeader) == 0x10, "OptionalHeader has incorrect size.");
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struct CNMTHeader {
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u64_le title_id;
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u32_le title_version;
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TitleType type;
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u8 reserved;
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u16_le table_offset;
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u16_le number_content_entries;
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u16_le number_meta_entries;
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u8 attributes;
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std::array<u8, 2> reserved2;
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u8 is_committed;
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u32_le required_download_system_version;
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std::array<u8, 4> reserved3;
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};
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static_assert(sizeof(CNMTHeader) == 0x20, "CNMTHeader has incorrect size.");
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// A class representing the format used by NCA metadata files, typically named {}.cnmt.nca or
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// meta0.ncd. These describe which NCA's belong with which titles in the registered cache.
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class CNMT {
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public:
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explicit CNMT(VirtualFile file);
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CNMT(CNMTHeader header, OptionalHeader opt_header, std::vector<ContentRecord> content_records,
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std::vector<MetaRecord> meta_records);
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~CNMT();
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u64 GetTitleID() const;
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u32 GetTitleVersion() const;
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TitleType GetType() const;
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const std::vector<ContentRecord>& GetContentRecords() const;
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const std::vector<MetaRecord>& GetMetaRecords() const;
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bool UnionRecords(const CNMT& other);
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std::vector<u8> Serialize() const;
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private:
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CNMTHeader header;
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OptionalHeader opt_header;
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std::vector<ContentRecord> content_records;
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std::vector<MetaRecord> meta_records;
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// TODO(DarkLordZach): According to switchbrew, for Patch-type there is additional data
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// after the table. This is not documented, unfortunately.
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};
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} // namespace FileSys
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